Result of method call ignored

org.openrewrite.java.search.ResultOfMethodCallIgnored

Find locations where the result of the method call is being ignored.

Recipe source

GitHub, Issue Tracker, Maven Central

• groupId: org.openrewrite

• artifactId: rewrite-java

• version: 8.24.0

Options

Type	Name	Description	Example
String	methodPattern	A method pattern that is used to find matching method invocations.	java.io.File mkdir*()
Boolean	matchOverrides	Optional. When enabled, find methods that are overrides of the method pattern.

Usage

This recipe has required configuration parameters. Recipes with required configuration parameters cannot be activated directly. To activate this recipe you must create a new recipe which fills in the required parameters. In your rewrite.yml create a new recipe with a unique name. For example: com.yourorg.ResultOfMethodCallIgnoredExample. Here's how you can define and customize such a recipe within your rewrite.yml:

rewrite.yml

---
type: specs.openrewrite.org/v1beta/recipe
name: com.yourorg.ResultOfMethodCallIgnoredExample
displayName: Result of method call ignored example
recipeList:
  - org.openrewrite.java.search.ResultOfMethodCallIgnored:
      methodPattern: java.io.File mkdir*()

Now that com.yourorg.ResultOfMethodCallIgnoredExample has been defined activate it in your build file:

Gradle

1. Add the following to your build.gradle file:

build.gradle

plugins {
    id("org.openrewrite.rewrite") version("6.12.0")
}

rewrite {
    activeRecipe("com.yourorg.ResultOfMethodCallIgnoredExample")
}

repositories {
    mavenCentral()
}

2. Run gradle rewriteRun to run the recipe.

Maven

1. Add the following to your pom.xml file:

pom.xml

<project>
  <build>
    <plugins>
      <plugin>
        <groupId>org.openrewrite.maven</groupId>
        <artifactId>rewrite-maven-plugin</artifactId>
        <version>5.29.0</version>
        <configuration>
          <activeRecipes>
            <recipe>com.yourorg.ResultOfMethodCallIgnoredExample</recipe>
          </activeRecipes>
        </configuration>
      </plugin>
    </plugins>
  </build>
</project>

2. Run mvn rewrite:run to run the recipe.

Moderne CLI

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell

mod run . --recipe ResultOfMethodCallIgnoredExample

See how this recipe works across multiple open-source repositories

The community edition of the Moderne platform enables you to easily run recipes across thousands of open-source repositories.

Please contact Moderne for more information about safely running the recipes on your own codebase in a private SaaS.

Contributors

Jonathan Schneider, Sam Snyder, Aaron Gershman, Tim te Beek